2.11BSD#431 - /usr/man/cat1/su.0

SU(1)		    UNIX Programmer's Manual		    SU(1)


NAME
     su - substitute user id temporarily

SYNOPSIS
     su [ -f ] [ - ] [ userid ]

DESCRIPTION
     Su demands the password of the specified userid, and if it
     is given, changes to that userid and invokes the Shell sh(1)
     or csh(1) without changing the current directory.	The user
     environment is unchanged except for HOME and SHELL, which
     are taken from the password file for the user being substi-
     tuted (see environ(7)).  The new user ID stays in force
     until the Shell exits.

     If no userid is specified, ``root'' is assumed.  Only users
     in the ``wheel'' group (group 0) can su to ``root'', even
     with the root password.  To remind the super-user of his
     responsibilities, the Shell substitutes `#' for its usual
     prompt.

     The -f option prevents csh(1) from executing the .cshrc
     file; thus making su start up faster.

     The - option simulates a full login.

SEE ALSO
     sh(1), csh(1)


Printed 11/26/99	   May 5, 1986				1